Document Type and Number:
Japanese Patent JPH0115688
Kind Code:
Y2
Application Number:
JP11316783U
Publication Date:
May 10, 1989
Filing Date:
July 22, 1983
Export Citation:
International Classes:
E01C3/06; E01C5/00; E01C5/06; (IPC1-7): E01C3/06; E01C5/00
Next Patent: JPH0115689